Fixing plate for greater tuberosity of humerus

Abstract

The utility model provides a humerus greater tubercle fixing plate which comprises a fixing plate body, the fixing plate body is of a heart-like structure, the lower edge of the fixing plate body is in a smooth transition arc shape, and the periphery of the fixing plate body is arranged towards the inner side in a micro-arc mode and matched with the anatomical form of the proximal humerus greater tubercle. A plurality of locking holes are formed in the fixing plate body and comprise the upper end locking hole and the lower end locking hole. The upper end locking hole and the lower end locking hole are located in the upper end and the lower end of the fixing plate body respectively, and the upper end locking hole and the lower end locking hole are vertically staggered. A plurality of universal nails, wherein each universal nail is matched with the corresponding locking hole; the small hook plate comprises a connecting plate and a tip end which are integrally formed, an included angle is formed between the connecting plate and the tip end, and the lower end of the connecting plate is arranged in the middle of the upper edge of the fixing plate body. The fixing plate can be more tightly attached to the anatomical form of the greater tuberosity of the humerus, meanwhile, multi-point fixing is achieved through the multiple locking holes, and fixing stability and reliability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a fixation plate for the greater tuberosity of the humerus. Background Art

[0002] Currently, fractures of the greater tuberosity of the humerus are a common clinical fracture type, and screw fixation is often used for treatment. However, due to the relatively porous bone in the greater tuberosity, especially in elderly patients, screw fixation alone often lacks sufficient fixation strength. Postoperatively, prolonged immobilization in the shoulder abduction position is required to prevent re-displacement of the fracture or cuts between the screws and the bone fragment, which increases the risk of surgical failure.

[0003] Some current humeral tuberosity plates on the market may suffer from issues such as unreliable fixation and slow recovery, failing to meet the clinical demands for fracture fixation stability and rapid postoperative recovery. Therefore, improvements are needed in their structural design and fixation effectiveness to better adapt to the anatomical structures of different patients, provide stronger fixation, and promote rapid recovery. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a fixation plate for the greater tuberosity of the humerus, which can make the fixation plate fit the anatomical morphology of the greater tuberosity of the humerus more closely, and at the same time use multiple locking holes to achieve multi-point fixation, thereby improving the stability and reliability of fixation.

[0005] The utility model is achieved in this way:

[0006] A humeral greater tuberosity fixation plate comprising

[0007] A fixing plate body, the fixing plate body having a heart-shaped structure and a smoothly transitioned arc at the lower edge, the fixing plate body being slightly arced inwardly on all sides to match the anatomical morphology of the greater tuberosity of the proximal humerus; the fixing plate body being provided with a plurality of locking holes, the locking holes including an upper locking hole and a lower locking hole; the upper locking hole being located at the upper end of the fixing plate body, the lower locking hole being located at the lower end of the fixing plate body, and the upper locking hole and the lower locking hole being staggered in an upper and lower manner;

[0008] A plurality of universal pins, each of the universal pins being matched with a corresponding locking hole;

[0009] A small hook plate includes a connecting plate and a tip formed in one piece, wherein the connecting plate and the tip form an angle, and the lower end of the connecting plate is arranged in the middle of the upper edge of the fixing plate body.

[0010] Furthermore, the fixing plate body and the small hook plate are integrally formed with a smooth transition.

[0011] Furthermore, the thickness of the fixing plate body is 3-3.5 mm.

[0012] Furthermore, the fixing plate body is made of titanium alloy plate.

[0013] Furthermore, the number of the upper locking holes is three, and the number of the lower locking holes is two.

[0014] Furthermore, the number of the upper locking holes is two, and the number of the lower locking hole is one.

[0015] Furthermore, the locking hole has a diameter of 3.5 mm.

[0016] Furthermore, the hole spacing between adjacent locking holes is 0.9-1.2 cm.

[0017] Furthermore, the angle between the connecting plate and the tip is 120° to 180°.

[0018] Furthermore, the length of the connecting plate is 1-1.5 cm, and the length of the tip is 3-5 mm.

[0019] The advantages of the present invention are:

[0020] 1. The fixing plate body of the present invention is configured in a heart-like shape to increase the effective area of ​​the plate and also to match the outer shape of the greater tuberosity of the proximal humerus.

[0021] 2. The upper and lower ends of the utility model are respectively provided with locking holes, which cooperate with universal nails. Each universal nail is respectively fixed to the fracture fragment of the greater tuberosity of the humerus and the proximal end of the humerus that is not fractured around it. The fixing angle is adjustable to ensure that the nail channel is perpendicular to the fracture line as much as possible and avoid the nail channel from entering the shoulder joint cavity.

[0022] 3. The small hook plate is slightly curved or straight and is used to fix the supraspinatus tendon at the insertion point of the greater tuberosity of the humerus, to reduce and fix the greater tuberosity fracture fragment that is displaced upward due to tendon traction.

[0023] In summary, the present invention can make the fixation plate fit the anatomical morphology of the greater tuberosity of the humerus more closely, and at the same time utilize multiple locking holes to achieve multi-point fixation, thereby improving the stability and reliability of fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 The utility model is a schematic diagram of a fixation plate for the greater tuberosity of humerus.

[0026] Figure 2 The utility model is a side view of a fixation plate for the greater tuberosity of humerus.

[0027] Figure 3 This is another structural schematic diagram of a fixation plate for the greater tuberosity of humerus of the present invention. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific implementation methods. In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] See also Figures 1 to 3 As shown, the utility model is a humeral greater tuberosity fixation plate, comprising

[0031] A fixation plate body 1, the fixation plate body 1 having a heart-shaped structure and a smoothly transitioned arc at the lower edge. The fixation plate body 1 is slightly arced inwardly on all sides to match the anatomical morphology of the greater tuberosity of the proximal humerus; the fixation plate body 1 is provided with a plurality of locking holes 2, the locking holes 2 including an upper locking hole 21 and a lower locking hole 22; the upper locking hole 21 is located at the upper end of the fixation plate body 1, and the lower locking hole 22 is located at the lower end of the fixation plate body 1, and the upper locking hole 21 and the lower locking hole 22 are staggered in an upper and lower manner;

[0032] A plurality of universal pins (not shown), each of which is matched with the corresponding locking hole 2;

[0033] A small hook plate 3, the small hook plate 3 includes a connecting plate 31 and a tip 32 that are integrally formed, the connecting plate 31 and the tip 32 are arranged at an angle, and the lower end of the connecting plate 31 is arranged in the middle of the upper edge of the fixing plate body.

[0034] In a specific implementation, a preferred embodiment is as follows: the fixing plate body 1 and the small hook plate 3 are integrally formed with a smooth transition.

[0035] In a specific implementation, a preferred embodiment is as follows: the thickness of the fixing plate body 1 is 3-3.5 mm.

[0036] In a specific implementation, a preferred embodiment is: the fixing plate body 1 is made of a titanium alloy plate.

[0037] In a specific implementation, a preferred embodiment is as follows: the number of the upper locking holes 21 is three, and the number of the lower locking holes 22 is two.

[0038] In a specific implementation, a preferred embodiment is as follows: the number of the upper locking holes 21 is two, and the number of the lower locking hole 22 is one.

[0039] In a specific implementation, a preferred embodiment is as follows: the diameter of the locking hole 2 is 3.5 mm.

[0040] In a specific implementation, a preferred embodiment is as follows: the hole spacing between adjacent locking holes 2 is 0.9-1.2 cm.

[0041] In a specific implementation, a preferred embodiment is as follows: the angle between the connecting plate 31 and the tip 32 is 120° to 180°.

[0042] In a specific implementation, a preferred embodiment is as follows: the length of the connecting plate 31 is 1-1.5 cm, and the length of the tip 32 is 3-5 mm.

[0043] In summary, the advantages of the present invention are:

[0044] 1. The fixing plate body of the present invention is configured in a heart-like shape to increase the effective area of ​​the plate and also to match the outer shape of the greater tuberosity of the proximal humerus.

[0045] 2. The upper and lower ends of the utility model are respectively provided with locking holes, which cooperate with universal nails. Each universal nail is respectively fixed to the fracture fragment of the greater tuberosity of the humerus and the proximal end of the humerus that is not fractured around it. The fixing angle is adjustable to ensure that the nail channel is perpendicular to the fracture line as much as possible and avoid the nail channel from entering the shoulder joint cavity.

[0046] 3. The small hook plate is slightly curved or straight and is used to fix the supraspinatus tendon at the insertion point of the greater tuberosity of the humerus, to reduce and fix the greater tuberosity fracture fragment that is displaced upward due to tendon traction.

[0047] In summary, the present invention can make the fixation plate fit the anatomical morphology of the greater tuberosity of the humerus more closely, and at the same time utilize multiple locking holes to achieve multi-point fixation, thereby improving the stability and reliability of fixation.

[0048] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A greater tuberosity fixation plate, characterized by: include A fixing plate body, the fixing plate body having a heart-shaped structure and a smoothly transitioned arc at the lower edge, the fixing plate body being slightly arced inwardly on all sides to match the anatomical morphology of the greater tuberosity of the proximal humerus; the fixing plate body being provided with a plurality of locking holes, the locking holes including an upper locking hole and a lower locking hole; the upper locking hole being located at the upper end of the fixing plate body, the lower locking hole being located at the lower end of the fixing plate body, and the upper locking hole and the lower locking hole being staggered in an upper and lower manner; A plurality of universal pins, each of the universal pins being matched with a corresponding locking hole; A small hook plate includes a connecting plate and a tip formed in one piece, wherein the connecting plate and the tip form an angle, and the lower end of the connecting plate is arranged in the middle of the upper edge of the fixing plate body.

2. The greater tuberosity fixation plate of claim 1, wherein: The fixing plate body and the small hook plate are integrally formed with each other and have a smooth transition.

3. The greater tuberosity fixation plate of claim 1, wherein: The thickness of the fixing plate body is 3-3.5 mm.

4. The greater tuberosity fixation plate of claim 1, wherein: The fixing plate body is made of titanium alloy plate.

5. The greater tuberosity fixation plate of claim 1, wherein: The number of the upper locking holes is three, and the number of the lower locking holes is two.

6. The greater tuberosity fixation plate of claim 1, wherein: The number of the upper locking holes is two, and the number of the lower locking hole is one.

7. The greater tuberosity fixation plate of claim 1, wherein: The locking hole has a diameter of 3.5 mm.

8. The greater tuberosity fixation plate of claim 1, wherein: The hole spacing between adjacent locking holes is 0.9-1.2 cm.

9. The greater tuberosity fixation plate of claim 1, wherein: The angle between the connecting plate and the tip is 120° to 180°.

10. The greater tuberosity fixation plate of claim 1, wherein: The length of the connecting plate is 1-1.5 cm, and the length of the tip is 3-5 mm.

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